Engineered for the most demanding industrial environments, Elite Flow Control’s Forged Steel Check Valves are built to perform reliably under extreme pressure and high-temperature conditions. Designed as non-return valves, they ensure unidirectional flow – automatically preventing backflow and protecting your piping system and equipment from damage.
Our forged check valves feature a lift-type, spring-loaded mechanism that delivers fast, responsive closure for superior flow control and leak-tight performance. Available in two configurations to suit your application requirements:
- Plug Type Check Valves – ideal for robust sealing in heavy-duty service conditions
- Ball Type Check Valves – preferred for smooth, low-resistance flow with reliable shut-off
Manufactured from high-integrity forged steel, these valves are a trusted choice across Oil & Gas, Petrochemical, Power Generation, and allied industries where performance and durability cannot be compromised.
Model No.: EFC-1/2CK1 Size: 3/8″ ~ 2″ (DN10 ~ DN50)
SPECIFICATIONS
| Parameter | Value |
|---|---|
| Design & MFG. | API 602 |
| Press-Temp Rat. | ASME B16.34 |
| End Flange | ASME B16.5 |
| End Threads | ASME B1.20.1 |
| Socket-Weld | ASME B16.11 |
| Test | API 598 |
MATERIAL LIST
| Part | Material Options |
|---|---|
| Body | ASTM A105 / ASTM A350 LF2 / ASTM A182 F304(L) / ASTM A182 F316(L) / ASTM A182 F51/F53 / ASTM A182 F11/F22 |
| Seat | ASTM A182 F6a / ASTM A182 F6a / ASTM A182 F304(L) / ASTM A182 F316(L) / ASTM A182 F51/F53 / ASTM A182 F11/F22 |
| Disc | ASTM A182 F6a / ASTM A182 F6a / ASTM A182 F304(L) / ASTM A182 F316(L) / ASTM A182 F51/F53 / ASTM A182 F11/F22 |
| Gasket | SS + GRAPHITE |
| Bonnet | ASTM A105 / ASTM A350 LF2 / ASTM A182 F304(L) / ASTM A182 F316(L) / ASTM A182 F51/F53 / ASTM A182 F11/F22 |
| Bolt | ASTM A193 B7 / ASTM A320 L7 / ASTM A193 B8(M) / ASTM A193 B8(M) / ASTM A193 B8(M) / ASTM A193 B16 |
| Spring | SS304 / SS316 / 17-7PH / INCONEL x750 |
| Hinge | ASTM A182 F6a / ASTM A182 F6a / ASTM A182 F304(L) / ASTM A182 F316(L) / ASTM A182 F51/F53 / ASTM A182 F304 |
DIMENSIONAL DATA – SWING TYPE
Swing Type, 800LB SW(NPT), Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) | 65(2½) |
|---|---|---|---|---|---|---|---|---|
| Standard Port | mm(in) | – | – | – | – | – | – | – |
| Full Port | mm(in) | 10(3/8) | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 | 44 |
| Lsw(NPT) Face to Face | mm | 79 | 92 | 111 | 120 | 120 | 140 | 178 |
| H (Open Height) | mm | 63 | 63 | 78 | 82 | 102 | 120 | 140 |
| Weight | kg | 1.3 | 1.4 | 2.5 | 3.4 | 4.5 | 7.3 | 10 |
Swing Type, 1500LB SW(NPT), Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Full Port | mm(in) | 10(3/8) | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) |
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| Lsw(NPT) Face to Face | mm | 92 | 111 | 120 | 120 | 140 | 178 |
| H (Open Height) | mm | 63 | 78 | 82 | 102 | 120 | 140 |
| Weight | kg | 3.0 | 3.6 | 4.3 | 6.1 | 8.8 | 12.6 |
Swing Type, 150~600LB RF, Standard Port, Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| LRF Face to Face (150LB) | mm | 108 | 117 | 127 | 140 | 165 | 203 |
| LRF Face to Face (300LB) | mm | 152 | 178 | 216 | 229 | 241 | 267 |
| LRF Face to Face (600LB) | mm | 165 | 190 | 216 | 229 | 241 | 292 |
| H (Open Height) 150~600LB | mm | 63 | 63 | 78 | 82 | 102 | 120 |
Swing Type, 900~1500LB RTJ, Standard Port, Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| LRTJ Face to Face (900LB) | mm | 216 | 229 | 254 | 279 | 305 | 371 |
| LRTJ Face to Face (1500LB) | mm | 216 | 229 | 254 | 279 | 305 | 371 |
| H (Open Height) 900~1500LB | mm | 63 | 78 | 82 | 102 | 120 | 140 |
Swing Type – Weight (kg): 150~1500LB Flange End, Standard Port, Bolted Bonnet
| Class | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|
| 150LB | 2.3 | 2.6 | 4.5 | 5.9 | 7.9 | 12.8 |
| 300LB | 2.5 | 3.6 | 5.3 | 7.3 | 10.2 | 13.7 |
| 600LB | 3.3 | 3.9 | 6.1 | 8.4 | 11.4 | 16.5 |
| 900LB | 5.1 | 9.2 | 12.2 | 15.1 | 21.2 | 25.4 |
| 1500LB | 5.1 | 9.2 | 12.2 | 15.1 | 21.2 | 25.4 |
DIMENSIONAL DATA – PISTON TYPE
Piston Type, 800LB SW(NPT), Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) | 65(2½) |
|---|---|---|---|---|---|---|---|---|
| Full Port | mm(in) | 10(3/8) | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 | 44 |
| Lsw(NPT) Face to Face | mm | 79 | 92 | 111 | 120 | 152 | 172 | 220 |
| H (Open Height) | mm | 63 | 63 | 78 | 82 | 102 | 120 | 140 |
| Weight | kg | 1.2 | 1.4 | 2.6 | 3.9 | 5.6 | 8.9 | 12.5 |
Piston Type, 1500LB SW(NPT), Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Full Port | mm(in) | 10(3/8) | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) |
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| Lsw(NPT) Face to Face | mm | 92 | 111 | 120 | 152 | 172 | 220 |
| H (Open Height) | mm | 63 | 78 | 82 | 102 | 120 | 140 |
| Weight | kg | 3.0 | 3.4 | 4.8 | 6.5 | 10.1 | 14.6 |
Piston Type, 150~600LB RF, Standard Port, Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| LRF Face to Face (150LB) | mm | 108 | 117 | 127 | 140 | 165 | 203 |
| LRF Face to Face (300LB) | mm | 152 | 178 | 203 | 216 | 229 | 267 |
| LRF Face to Face (600LB) | mm | 165 | 190 | 216 | 229 | 241 | 292 |
| H (Open Height) 150~600LB | mm | 63 | 63 | 78 | 82 | 102 | 120 |
Piston Type, 900~1500LB RTJ, Standard Port, Bolted Bonnet
| Parameter | Unit | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|---|
| Ød (Flow Passway) | mm | 10 | 13 | 18 | 23 | 28 | 36 |
| LRTJ Face to Face (900LB) | mm | 216 | 229 | 254 | 279 | 305 | 371 |
| LRTJ Face to Face (1500LB) | mm | 216 | 229 | 254 | 279 | 305 | 371 |
| H (Open Height) 900~1500LB | mm | 63 | 78 | 82 | 102 | 120 | 140 |
Piston Type – Weight (kg): 150~1500LB Flange End, Standard Port, Bolted Bonnet
| Class | 15(1/2) | 20(3/4) | 25(1) | 32(1¼) | 40(1½) | 50(2) |
|---|---|---|---|---|---|---|
| 150LB | 2.2 | 2.6 | 4.9 | 6.4 | 9.1 | 14.3 |
| 300LB | 2.4 | 3.6 | 5.7 | 7.9 | 11.3 | 15.2 |
| 600LB | 3.3 | 3.9 | 6.5 | 8.9 | 12.5 | 18.3 |
| 900LB | 5.1 | 8.9 | 13.1 | 1.5* | 22.5 | 27.5 |
| 1500LB | 5.1 | 8.9 | 13.1 | 1.5* | 22.5 | 27.5 |
